PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11639-1Pulley,groove

Engineered Air Systems, Inc. Dba Drs Sustainment Systems · NSN 3020-01-213-4661 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-213-4661 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-213-4661. Primary manufacturer part number: 11639-1.
Features
  • Pulley,groove — FSC 3020
  • 4 verified cross-references
  • Primary manufacturer: Engineered Air Systems, Inc. Dba Drs Sustainment Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Pulley,groove, cataloged under National Stock Number 3020-01-213-4661, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Engineered Air Systems, Inc. Dba Drs Sustainment Systems. This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePulley,groove
FSC / FSG3020 — No Item Name Available (FSG 30)
ManufacturersEngineered Air Systems, Inc. Dba Drs Sustainment Systems (CAGE 90598); Drs Environmental Systems Inc (CAGE 5RQL2); D and S Pulley Co Inc (CAGE 64116)
Technical Specifications
ParameterValue
NSN3020-01-213-4661
Primary Part Number11639-1
Item NamePulley,groove
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerEngineered Air Systems, Inc. Dba Drs Sustainment Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
9540-00-145-573160-8684 INTERCHANGEABLE
Angle,structural
Transtar Metals Corp
5330-00-245-542417265A INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
5955-00-267-715611639 INTERCHANGEABLE
Retainer,crystal Holder
Entron Industries Limited Partnership Dba Entron Industries Property Div
4730-00-554-7408 INTERCHANGEABLE
Locknut,pipe
5950-00-589-085811639 INTERCHANGEABLE
Coil,radio Frequency
Drs Signal Solutions, Inc.
5340-00-652-5679SM-B-187808 INTERCHANGEABLE
Standoff,threaded,spacing
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3120-00-792-9834116391 INTERCHANGEABLE
Bearing,sleeve
Cummins Inc.
5999-01-032-8215396220-2 INTERCHANGEABLE
Wire Mesh,knitted
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
3120-01-205-572111639 INTERCHANGEABLE
Bushing,sleeve
Leslie Controls, Inc. Dba Leslie Controls Inc
9540-01-378-488511639 INTERCHANGEABLE
Angle,structural
Aluminum Co of America
Cross-Reference Index
Part NumberManufacturer
11639-1 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
11639-1 Drs Environmental Systems Inc (USA)
11639 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
S529-11639 D and S Pulley Co Inc
Related Parts
9540-00-145-5731INTERCHANGEABLE
ANGLE,STRUCTURAL
60-8684
5330-00-245-5424INTERCHANGEABLE
GASKET
17265A
5955-00-267-7156INTERCHANGEABLE
RETAINER,CRYSTAL HOLDER
11639
4730-00-554-7408INTERCHANGEABLE
LOCKNUT,PIPE
5950-00-589-0858INTERCHANGEABLE
COIL,RADIO FREQUENCY
11639
5340-00-652-5679INTERCHANGEABLE
STANDOFF,THREADED,SPACING
SM-B-187808
3120-00-792-9834INTERCHANGEABLE
BEARING,SLEEVE
116391
5999-01-032-8215INTERCHANGEABLE
WIRE MESH,KNITTED
396220-2
3120-01-205-5721INTERCHANGEABLE
BUSHING,SLEEVE
11639
9540-01-378-4885INTERCHANGEABLE
ANGLE,STRUCTURAL
11639

Frequently Asked Questions

What is NSN 3020-01-213-4661?

NSN 3020-01-213-4661 is a Pulley,groove, manufactured by Engineered Air Systems, Inc. Dba Drs Sustainment Systems, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-213-4661?

NSN 3020-01-213-4661 has 4 cross-referenced part numbers: 11639-1 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 11639-1 (Drs Environmental Systems Inc), 11639 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), S529-11639 (D and S Pulley Co Inc).

What NSN replaces 3020-01-213-4661?

There are 10 known substitutes for 3020-01-213-4661: 9540-00-145-5731, 5330-00-245-5424, 5955-00-267-7156 and 7 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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